Description
SPECIFICATIONS
Bafang Model: M315 MM G340.500.C
Bottom Bracket Width: Fits For BB 68-73mm
Brand Name: BAFANG
Delivery Time: About 2-7 Days Delivery
Design: Brushless
High-concerned chemical: None
Max Speed: 38-45KM/H
Max Torque: 100N.m
Motor: Side Hung Motor
Motor Chainwheel: 36T / 42T / 44T Option
Motor Model: BBS02 / BBS02B
Motor Size: 68mm
Mounting Position: MID Drive
Origin: Mainland China
Voltage: 48V
Warranty of Motor and Battery: 1 Year
Warranty of Parts: 30 Days
Wattage: 401 - 500 W
BAFANG BBS02B 48V500W 68mm Mid-Drive Motor Kit (CAN PROTOCOL)
Convert your bike into a powerful, smart e-bike — easily and reliably.
🔧 What Makes It Great
Smooth & Powerful – Delivers strong, consistent torque for climbing and acceleration.
Easy Installation – Comes with a step-by-step video guide. Fits most mountain, road, and city bikes.
Versatile Riding – Switch between effortless cruising, fitness support, or traditional pedaling

✅ Key Features
FeatureDescription
Power & Torque: 500W motor ‧ 100 N.m max torque ‧ Ideal for hills, trails, and fast commuting
Compatibility: Fits standard 68–73mm bottom brackets with 34–36mm inner diameter
Riding Modes: 3 modes: Full Electric ‧ Pedal Assist ‧ Manual Pedaling
Battery Safety: Integrated BMS with over-charge/discharge, short-circuit, and over-current protection
Speed & Range: Up to 45 km/h (with 27.5″ wheel)
Design: Compact ‧ Quiet ‧ Harmonious integration with most bike frames
🚴 Perfect For
Daily commuters looking to skip traffic
Adventure riders tackling hills and trails
Seniors or anyone wanting extra pedal support
DIY enthusiasts building a custom e-bike

⚡ Easy Installation | Install in 60 Minutes, Ride in No Time.

How Do I Know If the BBS02B 48V500W68mm Fits My Bike?
📏 Check Your Bottom Bracket
Use calipers to measure:
✅ Length: 68–73mm
✅ Inner Diameter: 34–36mm
🚲 Compatible With:
Mountain bikes | Road bikes | Most city bikes
⚠️ Frame Clearance Note
On smaller or unique frames, check that the chainring does not contact the rear frame.

🖥️ LCD Display — Your Smart Ride Companion
Turn every ride into an informed experience — with Bafang motor at your fingertips.

🔧 BRAKE SYSTEM OPTIONS | Safety Tailored for Your E-Bike
📊 Quick Comparison
Feature | Brake Lever | Brake Sensor
Motor Cutoff | ✅ Built-in | ✅ Add-on
Install Type | Replace lever | Attach to existing lever
Brake Compatibility | Mechanical only| Hydraulic & Mechanical
🎯 How to Choose

Power Your Ride — Greenergy E-Bike Battery Series
⚡ Engineered to Go Farther, Charge Faster, Last Longer
🔋 Smart Performance Design
Lightweight | Fast Charging | Extended Cycle Life
📊 Optimized Energy Efficiency
High-density cells + Advanced BMS for maximum range and reliability
🛠️ Versatile Form Factors
In-Tube Batteries – Sleek, integrated frame design
Rack-Mount Batteries – Flexible rear-carrier installation
Downtube & Universal Models – Fit most e-bike frames and setups



🔋 Battery is optional, please make your selection when ordering.
• ✅ With Battery: Includes battery and charger in your order
• ❌ Without (NO) Battery: Includes motor kits only
📦 What‘s In the Box — BBS02B 500W Mid-Drive Kit
1 × 48V 500W Mid-Drive Motor (68mm)
1 × Thumb Throttle
1 × Speed Sensor
1 × 4-in-1 EB-BUS Cable
1 × Display (optional)
1 Pair × Crank Arms
1 × Chainwheel *(44T default | 36T/42T)*
1 Pair × Brake Levers or Brake Sensors
1 × Front Light
1 × Installation Wrench Set
1 × Crank Removal Tool
1 × 36V 250W Stickers
1 × Cable Ties Bundle
1 × User Manual
🛠️ Everything You Need to Build — Ready to Ride.
Need a different chainring or brake setup? Just leave a note with your order!

🔍 Frequently Asked Questions (FAQ)
🖥️ Q1: How to choose a display?
BAFANG Displays: BAFANG DPC080|BAFANG DPC010
Cost Effective: VD03|VD618
Popular Displays: EKD01 (Multi-Language)
⚙️ Q2: Which chainring should I pick?
🔋 Q3: Is a battery included?
— No, this kit does not include a battery.
❓ Still have questions?
We’re here to help — just send us a message!

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